Knitting-machine.



A. G. TIMMING.

KNITTING MACHINE.

APPLICATION FILED AUG.15,1910.

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W; Z m WM 1 my? 1,017,705. Patented Feb. 20, 1912. v 'T SHEETS--SHEET .2

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A. U. TIMMING. KNITTING MACHINE. APPLICATION IILED AUG. 15, 1910.

A. G. TIMMING,

KNITTING MACHINE. 7 APPLICATION FILED AUG-.15, 1910. 1,017,705, PatentedFeh.20,1912.

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A. O."TIMMING.

KNITTING MACHINE. APPLIOATION FILED AUG. 15, 1910.

Patented Feb, 20, 1912.

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A. 0 TIMMING.

- KNITTING MAOH ALP. I APPLICATION FILED Mans, 1919 1,017,705. PatentedFeb;20,1912.

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A, O. TIEFJL'BMEJG.

KNITTING MAOBLTNP' D AUGLl APPLICATION FILE Patented @331. 20, 1912.

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' A. TIM'MING.

KNITTING MACHINE.

APPLICATION FILED A.UG.15.193O.v

Pafiented Feb. 20, 1912.

I eA/dm .UNITED sTA'rEs PATENT OFFICE,

AUGUST 0. rnvimine, or SOUTH 3mm, INDIANA, ASSIGNOR .TO MISHAWAKAwoomiiw MANUFACTURING oo., or MISHAWAKA, IENDIANA, A 0022034521011 orINDIANA.

To all whom 'it may conc etn: I

Be it known that I, Aticiis'i G. Tii iumo, a citizen of the UnitedStates, residing at South Bend, in the county of St. J osephand i Stateof Indiana, have invented certain new and useful Improvements inKnitting-Mm.

chines, of which the following is a specifica- I tion.

My invention relates to improvements in l circular knitting machines forknitting stockings orsocks, and has for its object-thestructuralsimplification of such machines, so as to render the,mechanism for carry n outthe several functions thereof certain anpositive in their operation, and to minimize the liability .of thearious parts to beco ne out of'ord'er, i

' A-further. object of the invention resides in thenovel, arrangementand cooperation 0 OfJHGChaIHSIH for knitting the ,pattern and. stripe ina sock, SVlllCll'lS automatic in operationand which may be handilyadjusted to vary thepattern and stripe. W'ith these. and otherob ect s1n View, the

invent-ion consists in certain novel features of construction, ashereinafter described and pointed out in the claims.

In the dr awings employed for illustratingj thenpreferred embodiinent ofthe inven- 3 tionz Figure l isa side View of the com-.PlQtQQIntlCllillG; Fig. 2 is a frontview thereof; .;Fig. .3 is aside'view' on an enlarged "-seale-ot the cam and needle cylinders whenviewed froni' the right hand side. of the 11121 chine with the gaincylinder in position "shown infFig. 2; Fig. 4: is 'a plan or topview ofthe 'iiiachine Fig. 5 is a detail View ofthe pattern cam actuatingmechanism; Fig, ,6 a cross sectional 'yiew of the cani cylinder shou ingthe. stitch cam. and ad'- Justine" block for the same; Fig]? is a, sideView. of the stitch cam adjustinglilo ck; Fig.

8 is a cross sectional view of the can cylin-J der shou ing theelevating cam for long.

heeledl iieedles, and means for throwing sanie into and .out ofoperative posit-ion;

ture of the, canrw cylindei" deuelopedbnfla lane; showing" the relativeposition of the 0 earns, and indicating by dot-and-dashlines the ijjatfli f cam cylinder, showing the rocker canij'for '55 automatically. andconsecutivelythrowing Specification of Letters Patent.

a plane, ofthe canrpylinder, showing the.

9 isv a side view of the internal str c followed by the. needle heelsfor: plaiii-ti'ibular knitting; Fig. i0 is a' frag- 1 nientary View,dei'eloptid on a plane, of the Patented ream, 1912,

Application filed August 15, 1910. 'Serial No. 577,270. 7

stitching the pattern; Fig; 12 is a; 'perspec tive riewfot the patternwheeland shifting dogs mounted thereon; Fig. 13i's a cross sectional iiewof the pattern wheel taken'on a line ofFig. 12; Fig.14 is adiagrami'n'atic 'view in which the series of small circles representthe-needles, the black solid c1relesrepresenting --'leng .i heeledandthe plain circles short heeled needles. -Fig. '15

is a detail sectional view of the shifting actuating mechanism.

Forthe purpose of clearness,-'the various steps in the operation oftheinachine will icinber forming a 'par't' ofth'e pattern cam bedescribed-inf detail and in the order' in .Which' the 'k'nit-ting'of asock proceeds from the start to t-he'finishn The' machine embodies the-bd plate 1, I

which is supported by the standard 2, and the rod or leg 23in any.suitable manner. The bed 'plate, for the purpose of holding the machinemore secure and against vibration, may be fastened to "ahvorkfbeneh 4,.85

as shown. Suitably j ni'rnaled in abea'ring 5, supported by thestandard, is a'rotata'ble shaft 6, upon one end of which is mounted aloose pulley.:T-,'.and' a-drive'pulley 8-; and on its 'oppositefendisn'i'ountedav bevel gear. wheel -9," the teeth of= which mesh with; a.bevel toothed flange (not *shown) [on the lower end of the elm cylinder'10. The

.drive pi' l1ey, 'ivhi'ch carries a 'crank'ha rdle 11, inaylie c'-oifiiiected.ivith-any convenient chineby power; and abelt shifter 12serves forthrowinggtlie.inachin-into and oiifl'of support aweight'or'weightsllhand is slidalily inountedfjor \'*ertical iihoveinentupon a gu de rod, 15; Yarod 16, which is hooked I at oneend' beingsecured :to the i 1': per .end

of the frainefand its hooked 'end'a ap'te'gl to 'enga ge the n ebduring" the knitting opera-Q ticn" and drawi'tlie-sgimjtailt, forthepurei .ipose ivell understood in the 'artfi fi p i sy thus farde'stiribed are iill of --.'w'ell l c nottn constructionend operation,and U0 tion during th I 40; need1esthrp4wp'ou v of. action are indicatedcontinuous tubular lmittingQ The dot-anddash line in Fi 9, re resentsthe vertical Increments of t e nee le' 'heels as actuated by the camsand camgroovesin continuous tubular knitting, the needles being mountedin a stationary needle cylinder 19 The rock-cam 120,.jfor the presentpurpose, re mains stationary, and thus serves conjunction with' the cam18, to depress the needles to.,efiect the stitch movement, and

2b the cam '17"elevating the needles. Thus for continuous tubularknitting the needles pass over the dropper camj21, are elevated by thecam 17 andlowered to efiect the stitch bythe cams 20 and 18, the droppercam 22 be- 25 ing' raised bythe needles as the heels thereof passout ofthe cam groove, after which the needles remain in a stationary positionuntil again actuatediin the aforesaid manner. Supposing now that thedesired length of so tubular fabric fer the leg portion of the sock hasbeen completed, an the nextlstep isvto form the heel. In forming thetubular 'fabric all'of the needles are brought into action, but. infashioning the heel one-half so of the needles are,i'while stillretaining their a stitch, raised by hand so that their heels willbeabove and free ,fro n ,tlrej infiuenoe of the knitting cams, ing,,e'ntirely out of acas ionlng'oiieration. The

l-withi'n the ket A ;\in"Fi I: 14. The needlesemployedddmaking. the?eel, and which will. hereinafter be re erred to as the fashioningneedles, usually consist of about one third of thetotal nuinlzier, whichare equally (,i'd-iVidQd. and disposed at opposite sides of the needle.cylinder, as represented -by brackets IBj nFi 14 The ifashionin needlesare c numbere consecutively ,.in-' t e order '60- which they are thrownoutof action,'upon reciprocation of the cam cylinder, The ma- I,chine'is not power-driven during the fashioning-Qf'the' heeLandtoe, theoperator reciprocating'the cam, cylinder by means of t 5 crank handle11. For the purpose of throw- ;ing the fashioning needles automaticallyout of'action one also. timefin order to na'rrowthe vfiat web to theextent ofone needle, at'each movement ofg-the"chmf cylinder-fas the same59 is reci rocated', theglrockei: cam 20 is dis-' P d s e nt h -wm 5 1ndl l, t p:

per edge, having an arc formation and; ex-

t s flawhlh engage. the notched lgmr-endsof the-last mentioned cams asthe 1 same is. rocked from one the other.

pin 24; on the rock cam projects through an arcshaped slot 25 in the camcylinder, and its end is attached to the lower arm 26 of a tensiondevice for the rocker arm. The tension dGXlCG comprises the lower arm26, which is pivoted tothe cam cylinder 27, and an upper arm 28, whichispivoted at 29, the pivotal points of the two arms being-slightly outof vertical alinement, for a purpose presently explained. Pivotallyconnected with 30, which enters a bore in the upper arm, with its freeend engaging a coil spring 31, disposed within the bore, as plainlyshown in Fig, 3. The tension device assumes either one or the otherposition shown in full and dotted lines, according as the rocker cam isrocked fromone position to the other, and yieldingly holds the said camagainst movement. In either position the free ends of the arms are overcenter, and the rocker cam is rocked against the action of the tensiondevice.

- The mode of operation in forming the heel is as follows The operator,by means of the crank handle, causes the cam cylinder to bereciprocated, by giving the cylinder only .a partial'rotation in eitherdirection. Assumin the first movement to be to the left, or 1n thedirection of the arrow as shown in Fig. 10, the heel of needle markedcause same to' tilt into position shown by dotted lines, and in so doingelevate the needle out of range of the knitting earns 17 and 18, theremaining needles of the series automatically raised, one more needlecomes into operation after each movement, until allof the needles areagain within the influence of the knitting cams, and-the grad ualwidening of the web is accomplished and the heel'compl'eted. Thecylinder is now rotated and the tubular knitting continued Thiscompleted, the-same mode of operation in thelptoe.

1 g now described the mechanism and mod 5' f operation for knitting aplain sock,-

I w l nxt proceedto described the mechathe upper end of the lower arm isa plunger Na. 1 will contact with the rocker cam, and,

being deflected by said cams to make the tocompl'ete' the foot portionof the sock.-

for forming the heelis carried out for form? his hand, so that while oneneedle is' always nism andmode of operationfor knitting a pat-tern orcross stripe around the sock, .a double yarn feedbeing used, one for thebody. ofthe sock and the other for the pat The slot 44 permits theshifting member to have an endwise movement ,Mnd a coil spring 49, oneend pf which .is 'connected to the arm'40 and its opposite end to thewhich latter is pivoted at (12' to the bed plate of the machine, so thatthe pattern wheel may be'swu ng to one. side and out of operarivposition,when plain knitting only is.

when moved to an inoperative-position the stay pin 63 engages theaperture 64 in the bed plate. The ratchet wheelhas grooves 65 formed inits upper side and arranged at 5 tern. The yarn used for thepattern isalso right angles to each .other, and in these used for knitting astripe lengthwise of the grooves the leg, members of arch shaped sock.For the purpose of simplifying the tripping dogs 66 are adapted toslide. The description, the cross stripes will be hereincross members ofthe dogs are notched on after referred to as the pattern, and the theupper and lower side respectively, as

1o lengthwise stripes simply as the stripe indicated at 67' in Fig. 12,so as to bring the The patternis formed. by bringing all of .upper sidesof the dogs on a level with each the needles into action at the propertime, other. Each dog is beveled at its ends, as for example, everysixth revolution of the at 68, so that as each dog is shiftedat the camcylinder, depending upon the space deproper time and one of their endsbrought l5 siredhetween the patterns. The yarnBQ is .within the pathtraveled by the friction for the body of the sock, and the pattern androller 47, as the cam cylinder rotates," thle' st-ripeyarn' 33, isconducted from the spool roller will contact with the beveled portion34, through the tubular guide rod 35, to the and ride over the same,thus-elevatmgthe yarnicarrier 36. In order to automatically shiftingmember 42, and with it the bar 40 20 bring the pattern cam 37 intooperative poand the pattern cam connected therewith,

sit-ion at, the proper intervals, which cam is thus bringing all oftheneedles into operaarranged tosl-ide and partly projects into a tionwith respect to the pattern yarn. Upon.

slanting slot 38 in the cam cylinder, the elevation of the shiftingmember 42, the same is pivotally connected by means of a end of thecatch lever 50 engages the under 25 pivot screw 39, with the lower endof a edge thereof and holds the same elevated swinging arm 40, which inturn is pivoted until the cam cylinder has made a complete tothe'cylinder at 41, the pivot member passrevolution and the pattern isstitched .ening through an elongated aperture in the t-irely around thesock, when the trippin-52; 7

V arm, so as to permit the arm to have both a on the catch lever engagesthe trip -.finger 3o pivotal and: longitudinal movement. The 69, andreleases the attern cam-actuating ,5 arm rests upon an 'L-shapedshifting memmechanism, which thereupon assumes itsj ber 42, one arm ofwhich has a. slot- 44, normal. position. If,jas above stated, throughwhich a pivot screw 45 asses, and intended to stitch a pattern in thesock every its 'laterally extending arm 46 me a tricsixth revolution ofthe cam cylinder, a cam 55 tion roller 47 mounted on the end thereof.70, carried by said cylinder, is arranged to,

contact with the end of a ratchet dog ftl,

which rocks on 'a pivot 72, and carries a spring actuated pawl 73 on itsopposite end to engage the ratchet wheel, the ratchet dog to camcylindentends to draw the arm down being returned to normal position aftereach 0and' 'withit the-shifting member, when the movement by the spring 74.Upon. eaQhlatter is .not locked against movement. revolution .of thecylinder the cam/70; rocks Mounted upon the pivot screw 45, is atheratchet. dog sufliciently -to move .thespring actuated catch lever '50,the end 51 ratchet wheel to the extent of two teeth and, 45 of'whichnormally rests upon the beveled the sixth movement brings the end ofone.of

upper face of-the-shifting member, and its the trip dogs 66 into thepath'traveled by opposite. end carries a laterally extending thefriction roller'. As the pattern wheel trip pin Before describing theoperais revolved in a step by step motion, the ends 1 tionof the abovemechanism for throwing of the trip dogs Contact with a plate spring 50the pattern camjin'to and, out of operative 75, which shifts the dogsout of the path position, it isadvisable first to describe the travel ofthe friction roller, audit is only.-

'mcans for actuating said mechanism at the when the predetermined timefor. the tripdesired intervals. F or this purpose a patping operationarrives, that the end of atern wheel is used which comprises a ratchettripping dog engages a shift block 76, and 55 wheel 60, suitably mountedupon a plate'ol, shifts the" same against the tension ofthe-12s1)I'ing75,.into position for en'gagenientbyt; the friction roller, asshown by "dotted: linesin Fig. 4. As the end ofthetrippingdog n passesthe shifting block upon the n'extcfi 60 being done. [The stay pin 63, ispassed movement of the pattern wheel, the same 12 through correspondingapertures in the plate is shifted out of operative position bythe;

' an operative or inoperative position. The pattern wheel andcooperating mechanlsm are shown in operative position in Fig. 4, and

61 and the bed plate, to retain same in either plate spring before thecamcylinder again completes'a revolution. -A-'detent i l-pres;

vents reverse motion of the ]')attr n .\vliccl,

and a friction block 7 8,preferahly of leather,

is held infi contact with the-upper surface of I the pattern wheeltoprevent lost motion.

The means and mode of operation for stitching a pattern will bereadily'understood from the foregoing description, and I will'nextproceed to describethe means a and mode of operation for stitching astripe lengthwiseof the sock. For this purpose reference is to'be had toFigs. 8 "and 14, the

simply changing the relative positions of the Both the long and shortheeled needles. short and long heeled needles" are actuated by theproper cams for continuous tubular knitting, but the long heeledneedles" are actuated, so as to take the stripe yarnyonly by projectingthe striper earn 80 into the cam cyllnder a sufficient distance so as tobe en-' gaged thereby, butnot s'u'llicient'distance so as to engage theshort heeled needles, as

plainly shown in Fig. 8. The striper cam is mounted to shift through anopening in the cam cylinder, and carries a pin 81, which extends throughan aperture in the archblock 82, with an expansion coil spring 83encircling the same, and its ends bearing against the cam and thearclr-block' R0 tatably mounted upon theend of said' pin is an adjust ngknob 84, which has an inner face of step formation, and the arch-blockis provided with a lug 85, so that by pulling outwardly on the knob andgiving the same a half turn, the broadest part thereof will engage thelug, and thus hold" the str-iper' cam out of operative position. Anotherhalf turn will permit the protuberance on the knob to pass beside thelug and thecam to be shifted into operative position. \Vhe'n" thestriper cam is in use, the function of which is to elevatethe long'heeled needles plete the stitch. Said stitch cam is secured to a'block.87, which is arranged to slide in the slot 88in the cam cylinder, andsecured to said block by a pivot screw 89 is an ads justing head 90,having a notch 91 adapted to engage either of the pin steps 92,according as the head is in its raisedor lowered position.' A wirespring 93 coiled at one end around the pivot 89, and extending aioundthe handle 94,'serves to hold the head in engagement with the pin stops.By simply giving the adjusting heada slight turn so as to disengage samefrom the pin stop, the

same may be raised or lowered and the stitch caln shifted into operativeor ino erative position. The stitch cam is also shi ted into operativeposition when stitching the pat- 3111,, ,The {pattern and stripe yarnguide 36 is located directly over the striper cam, and over the upperend of the pattern cam when in an elevated position. It will be observedthat, as every sixth needle, for example, has

a long heel, '"tl ey alone will be elevated'to' engage the shape yarn;which, being of a different color than the body yarn, will. stitch astripe lengthwise of the sock, the

is bewhich cooperates with said cams, are all maintained out ofoperative position; the pattern wheel, which controls the actionof thepattern ca1n,being-shifted into operative position only when it isdesired to form a.-

pattern or cross stripe, and the striper cam when it is desired to formastripe lengthwise of the sock;

Having thus'de'scribed my invention, what is claimed l. A patterncalnoperating mechanism,

comprising a rqtative wheel, grooves formed in the upper side thereof,trip dogs arrangedto slide in said "grooves, a shift block forcontacting with the ends of the trip dogs to "shift the same in onedirection, and means for shifting the trip, dogs in the oppositedirection, I I

2. A pattern cani operating mechanism, comprising a rotatlve wheel,radial grooves formed in the upper side thereof, archshaped tripdogsprossing each other and H161! leg niembersl engaging said grooves,and means for shifting the trlp dogs upon rotation of the wheel.

A pattern, cam operating mechanism comprising a rotative pattern wheel,trip dogs mounted on said pattern' wheel and only, a stitch cam 86 islowered to-feffect a" downward stroke of the needles and comslidableradially of theaxis thereof, and means cooperating with the patternwhee'l for alternately shifting the tripdogs toward and 'awayifrom theperiphery of said wheel.

' 4. In a" pattern mechanism for knitting niachinea the combination withthe cam cylinder and pattern. cam, actuating mecha;

nism for ,the pattern earn, a pattern wheel having radially shiftabletrip members wheel a alternately/ah into and out of the path,

mp members i he actuating mechanism.

the pattern 5. In a pattern mechanism for knitting machines, thecombination of the cam cylinder, a pattern cam arranged to slidethereon, a swingin arm pivoted on the cam (kylinder and having itsswinging end connected with the pattern cam, a shifting bar havmg a partthereof extending beneath. said swinging arm tor actuating the latter, a

trigger mounted adjacent said shifting bar cylinder and having itsswinging 01'l(l (3()11 nected with said pattern cam, alshi fting barhaving a longitudinal slot and a lateral extension extending beneathsaid swinging arm for actuating the latter, a pivot member on the camcylinder extending through the slot in the shifting bar, a rigger mount-.ed on said pivot member adj aeentthe shifting arm and adapted forlocking engagem nt with the lateral extension of the shifta mg bar when111 an elevated pos1t1on, means" fortripping saidv trigger, andmechanism for actuating the shifting bar at predetermined periods.

In testimony whereof I aflix my signature,

two Witnesses. AUGUST C. TIMMING. lVitnesses CHARLES G. HAGERTY GEORGEW. Slums.

in presence of

